The grocer, which has about 95,000 workers, said it is making the change "to better meet the needs of" its business. Whole Foods said it is helping worker explore full-time jobs at its stores or find other ways to get health care coverage.

Online shopping giant Amazon.com Inc. bought Whole Foods two years ago for nearly $14 billion, cutting prices on some items and adding its smile logo in its aisles.

FILE - This Friday, June 16, 2017, file photo shows corporate signage at a Whole Foods Market in San Antonio. Ahead of Thanksgiving 2017, Amazon is giving Prime members their first taste of special discounts at its recently-acquired Whole Foods stores. (AP Photo/Eric Gay, File)